Abstract
AbstractThis paper reviews the current status of slab stabilization specifications and describes in situ test results and statistical analysis comparing injected polyurethane foam and cementitious grout for a deteriorating jointed concrete pavement supported on an open-graded aggregate subbase. The stabilization was performed to improve support conditions by filling voids, reducing deflections under loading, and improving load transfer efficiency (LTE) near joints and cracks. Falling weight deflectometer (FWD) tests and faulting measurements were obtained before and after stabilization. LTE measurements indicated statistically significant improvement near cracks and joints in both sections. Deflections under loading showed statistically significant improvements only near cracks (and not near joints) in the injected foam section and only near joints (and not near cracks) in the cementitious grout section. Faulting reduced by about 2–5 mm after injected foam stabilization and 1–2 mm after cementitious grout...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
